John Deere ST0521M ユーザーズマニュアル
MAINTENANCE
18
MTF-031039C
HOW TO ADJUST THE BELT TENSION
IMPORTANT: When you release the auger bail, the au-
ger must stop rotating. If the auger does not stop, ad-
just the belt tension as follows:
1.
ger must stop rotating. If the auger does not stop, ad-
just the belt tension as follows:
1.
Disconnect the spark plug wire from the spark plug.
2.
Remove the belt cover.
3.
Loosen the idler pulley nut (see Figure 14).
4.
Move the idler pulley to the bottom of the idler arm
slot. If the idler pulley is already in the bottom posi-
tion, replace the auger belt. See How To Replace The
Auger Belt in the Maintenance section.
slot. If the idler pulley is already in the bottom posi-
tion, replace the auger belt. See How To Replace The
Auger Belt in the Maintenance section.
5.
Tighten the idler pulley nut.
6.
Install the belt cover.
HOW TO REPLACE THE AUGER BELT
1.
Disconnect the spark plug wire from the spark plug.
2.
Remove the belt cover.
3.
Remove the belt guide (see Figure 14).
4.
Remove the auger belt from the engine drive pulley.
5.
Push down the idler arm to move the brake away the
auger drive pulley. Remove the auger belt from the
auger drive pulley.
auger drive pulley. Remove the auger belt from the
auger drive pulley.
6.
Loosen the idler pulley nut. Move the idler pulley to the
top of the idler arm slot. Tighten the idler pulley nut.
top of the idler arm slot. Tighten the idler pulley nut.
7.
Install a new auger belt.
8.
Install the belt guide. Make sure the fasteners that
secure the belt guide are tight.
secure the belt guide are tight.
9.
Check the operation. When you release the auger
bail, the auger must stop turning. When you engage
the auger bail, there MUST be clearance between the
brake arm and the auger drive pulley.
bail, the auger must stop turning. When you engage
the auger bail, there MUST be clearance between the
brake arm and the auger drive pulley.
10. When you release the auger bail, the auger must stop
rotating. Make sure the brake contacts the auger
drive pulley (Figure 14) and that the auger cable
spring (Figure 13) has slack (no tension). If not, check
the cable spring adjustment as follows:
drive pulley (Figure 14) and that the auger cable
spring (Figure 13) has slack (no tension). If not, check
the cable spring adjustment as follows:
11. Remove the boot from the auger cable spring as fol-
lows:
S
Disconnect the end of the idler spring from the
idler arm (see Figure 14).
idler arm (see Figure 14).
S
Remove the auger belt from the idler pulley.
S
Remove the end of the auger cable spring from
the auger bail (see Figure 13).
the auger bail (see Figure 13).
S
Remove the boot from the auger cable spring.
S
Attach the end of the auger cable spring to the
auger bail.
auger bail.
12. To adjust the auger cable spring:
S
Install the auger belt to the idler pulley (see
Figure 14).
Figure 14).
S
Attach the idler spring to the idler arm.
S
Loosen the jam nut (see Figure 13).
S
Turn the adjuster until the auger cable is slightly
slack.
slack.
S
Tighten the jam nut.
13. Remove the idler spring from the idler arm (see
Figure 14). Remove the auger belt from the idler
pulley. Install the boot to the auger cable spring.
pulley. Install the boot to the auger cable spring.
14. Install the auger belt, idler spring, and belt cover.
Auger Cable Spring
Auger
Bail
Jam Nut
Adjuster
Figure 13
Auger Cable
Figure 14
Idler Pulley
Nut
Idler Arm
Idler Pulley
Auger
Belt
Engine Drive
Pulley
Brake
Auger
Drive
Pulley
Idler
Spring
Belt Guide